Bucketloads of copies of the Burkert, but most state 35 or 40 bar of working pressure.
I tested a few of those, and had a lot of failures on the function. The solenoids are not good enough.
Also the brazed solenoïd stem is a way weaker part than the stamped stainless steel stem Burkert provides
I found a supplier trough Alibaba that is willing to supply versions rated at the same working pressure as the Original, and they use a silver brazing for the stem. Fot the intent and purpose, that is the same valve.
There isn't a "FRA approved parts list", nor for pnematics, nor for hydraulics.
Test check on the event itself is done by people that have years of experience (even if they look young) and those will spot shoddy work or iffy practices and will tell the owner/user that.
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